As a Canadian citizen, you can sponsor a spouse while you are living outside Canada but you have to convince immigration that you have plans to live in Canada after your spouse gets PR. It takes 7 weeks to approve sponsorship and after that processing time in India average 4 months, you can look it up on the CIC website at
http://www.cic.gc.ca/english/information/times/international/05-fc-spouses.asp#asia and that time is if immigration believes your case and has no further questions. If they want more documents, it will delay you.